As a died in the wool geek, I carry a pen at all times. (I even still carry a slide rule in my breifcase. :-) The pen I carry now (and the first one I have not been able to break is a Countycomm Embassy pen. Fisher Space refill, smooth ends but sturdy enough to use as a kubaton, non-threatening to security.

I also carry a Write-in-the-Rain notebook in a plastic sleeve that I picked up somewhere. It is used for notes I want to keep for a while. I also carry a cheap notebook for scratch notes.

Respectfully,

Jerry